They also took several measures, including barring the state-owned airline from using their airspace and expelling Qatari residents from their territories. Saudi Arabia closed its land border with Qatar.
Today the Qatari foreign ministry denounced "human rights violations arising from the UAE's discrimination against Qatar and Qatari citizens".
It also condemned "an unlawful land, sea and air siege against Qatar as part of a campaign of political and economic coercion".
"The UAE deprived Qatari companies and individuals of property and assets and denied fundamental access to education, medicine and justice in the UAE courts," he added. Because of this, the ministry aid, Qatar had started proceedings against the UAE at the Hague-based International Court of Justice, the UN's top court which rules in disputes between countries.
Qatar requested that the ICJ "order the UAE to take all steps necessary to comply with its (international) obligations... including by ceasing and revoking the discriminatory measures and by restoring the rights of Qataris".
Doha cited the International Convention on the Elimination of All Forms of Racial Discrimination (CERD), which it and the UAE have both signed.
Qatar is also demanding "full reparation, including compensation, for the harm suffered as a result of the UAE's violations of CERD", the statement added.
On the eve of the June 5 anniversary of the dispute, Qatar's National Human Rights Committee released a report claiming more than 4,000 human rights abuses had been committed against Qataris by the Saudi-led alliance in the past year.
Qataris have been exposed to arbitrary arrest and routinely denied freedom of movement, the report by the government-appointed body said.
Qatar has said that the dispute is an attack on its sovereignty and punishment for pursuing an independent foreign policy.